AK-4/100 Automatic Mass Comparators

AK-4/100 Automatic Mass Comparators view:1

Product code: WL-413-0004


Maximum capacity [Max]: 110g

Readability [d]: 0,001mg

Automatic mass comparator AK-4/100 series is intended to automatic determination of weights mass deviations with operator’s activity limited to the minimum. The comparator enables determining deviations of three tested weights in a single cycle. AK-4/100 is designed to compare weights from 10 g to 100 g. The instrument is commonly applicable in mass measuring laboratories, and particularly in certification units for weights classes E and F.

Design and functionality:
The supervising part of the mass comparator is a digital module which cooperates with a controller of instrument’s mechanical components. The digital module and the automatic loader are located in mass comparator’s weighing chamber. The instrument is operated by means of digital display which is plugged to mass comparator’s controller. The supervising elements are not integrated with mass comparator’s mechanical parts, thus enabling separation of instrument’s weighing chamber from ambient conditions influence.


Automatic Mass Comparator of AK-4 Series
RADWAG Mass comparators
RADWAG Mass comparators


E1 10 g ÷ 100 g 
E2 10 g ÷ 100 g 
F1 10 g ÷ 100 g 
F2 10 g ÷ 100 g 
Maximum capacity [Max] 110 g
Readability [d] 0,001 mg
Weighing pan dimensions ø30 mm
Repeatability at low load 0,002 mg (10 g) 
Repeatability at nominal load 0,002 mg (100 g) 
Stabilization time 30 s
Operating temperature +15° ÷ +30°C 
Power supply 110 ÷ 230 V AC / 50 ÷ 60 Hz / 13,5 ÷ 16 V DC 
Packaging dimensions 860×800×560 mm
Atmospheric humidity 40% ÷ 60% 
Electric compensation range - 1 ÷ + 10 g
Adjustment external 
Working temperature change rate ± 0,5 °C / 12 h (± 0,3 °C / 4 h) 
Atmospheric humidity change rate ± 2 % / 4 h 
Net weight 45,8 kg
Gross weight 65,8 kg
Weighing device dimensions 385×215×600 mm
Controling device dimensions 206×140×70  mm
Supplementary weights internal half automatic 
Supplementary weights external
Eccentricity (tested load) 0 mg
Chamber packaging size 950×420×630 mm
Anti-draft chamber dimensions 560×340×665 mm
Magazine positions
Repeatability is expressed as a standard deviation determined for 6 ABBA cycles. Standard deviation is experimentally determined under ambient conditions for calibration of E1 class mass standards specified in OIML R111 (Table C.1.) document.


Technical Documentation

User Manual
1.93 MB EN

see the publication

Data Sheet
0.43 MB EN

see the publication
Publications and teaching materials


Receipt printer
Ambient Conditions Monitoring
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RS 232 cables (scale - computer)
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Radwag Balances and Scales
Torunska 5
26-600 Radom
tel.: +48 48 386 63 03
e-mail: export@radwag.com
TIN: PL7960000327
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